Facile synthesis of nickel cobalt selenide hollow nanospheres as efficient bifunctional electrocatalyst for rechargeable Zn-air battery

作     者：Xuerong Zheng Jinfeng Zhang Jihui Wang Zhijia Zhang Wenbin Hu Yajing Han 郑学荣;张金凤;王吉会;张志佳;胡文彬;韩雅静

作者机构：School of Materials Science and EngineeringKey Laboratory of Advanced Ceramics and Machining Technology of the Ministry of EducationTianjin UniversityTianjin 300072China Department of ChemistryVirginia TechBlacksburgVirginia 24061USA School of Materials Science and EngineeringTianjin Polytechnic UniversityTianjin 300387China 

基　　金：supported by the National Natural Science Foundation of China (51804216) a scholarship from the China Scholarship Council (CSC) (201806255078) 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2020年第63卷第3期

页      码：347-355页

摘      要：Designing high active,low cost and bifunctional electrocatalysts is urgent for developing clean energy storage and conversion *** metal selenides exhibit optimal electronic conductivity and tunable physicochemical properties,which endow them with potential for efficient electrocatalysts to facilitate the oxygen reduction and oxygen evolution reactions(ORR and OER).Herein,hollow NixCo0.85-xSe nanospheres were synthesized using a facile polyol based solution chemical *** NixCo0.85-xSe exhibits an onset overpotential of 0.89 V for ORR,and an overpotential of 305 mV to achieve 10 mA cm^-2 for ***,the NixCo0.85-xSe based Zn-air battery displays remarkable specific capacity and *** superior catalytic performances can be attributed to the synergistic effect,large specific surface area and enhanced electron transfer *** approach provides a new way to design highly efficient bifunctional electrocatalysts for electrochemical energy storage and utilization.

主 题 词：transition metal selenides bifunctional electrocatalyst oxygen reduction reaction oxygen evolution reaction rechargeable Zn-air battery 

学科分类：0808[工学-自动化类] 07[理学] 070205[070205] 08[工学] 080501[080501] 0805[工学-能源动力学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s40843-019-1203-0

馆 藏 号：203880696...